13208840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4651}}^1$

素因数の和:4733

約数の個数: 32

約数和(自身を含む): 30144960

約数和(自身を除く): 16936120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4651, 9302, 18604, 23255, 37208, 46510, 93020, 186040, 330221, 660442, 1320884, 1651105, 2641768, 3302210, 6604420, 13208840]

約数ペア:

[(1, 13208840), (2, 6604420), (4, 3302210), (5, 2641768), (8, 1651105), (10, 1320884), (20, 660442), (40, 330221), (71, 186040), (142, 93020), (284, 46510), (355, 37208), (568, 23255), (710, 18604), (1420, 9302), (2840, 4651)]